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sheng wu you ji fu he fei ji qi kai fa qian jing
Author(s): 
Pages: 44-46
Year: Issue:  1
Journal: Resources Economization and Comprehensive Utilization

Abstract: 生物有机复合肥及其开发前景信阳地区经委胡真智信阳地区农牧局胡明阁一、前言目前农业上施用的肥料可分为有机肥、无机肥和菌肥三大类。有机肥含有丰富的有机质和农作物需要的多种养分,既可使土壤肥力保持平衡,又可提高作物品质,但其中有效养分含量低,难以使作物高产...
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